package yedean.bean;

import java.util.HashMap;
import java.util.Map;

/**
 * UserDap
 *
 * @author yedean
 * @date 2022/7/6
 */
public class UserDao {
    
    
    private static final Map<String,String> map =new HashMap<>();
    
    static {
        map.put("1001","李蕾蕾");
        map.put("1002","小页");
        map.put("1003","叶熊熊");
    }

    public String queryUserName(String uId) {
        return map.get(uId);
    }
}
